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Cursor misalignment occurs in Windows LocalShell #39

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QQxiaoming opened this issue Jun 5, 2024 · 2 comments
Closed

Cursor misalignment occurs in Windows LocalShell #39

QQxiaoming opened this issue Jun 5, 2024 · 2 comments
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bug Something isn't working

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@QQxiaoming
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QQxiaoming commented Jun 5, 2024

Adjusting the window size of the local terminal in Windows will cause the cursor position to be incorrect.

  • OS: Windows11
  • Version: msvc version

This issue may come from the reflow of the conpty,

refer to the following:
microsoft/terminal#16985
microsoft/terminal#14291
microsoft/terminal#1173

QuardCRT currently does not plan to support conpty‘s resize quirk. Waiting for the official support of passthrough may fundamentally solve this problem.

@QQxiaoming QQxiaoming added the bug Something isn't working label Jun 5, 2024
QQxiaoming added a commit that referenced this issue Jun 6, 2024
Signed-off-by: xiaoming <2014500726@smail.xtu.edu.cn>
@QQxiaoming
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Now we can solve this problem by setting ResizeQuirk to false, but we need to check whether it will introduce other problems.

// FIXME: QuardCRT is not support resizeQuirk
const BOOL bResizeQuirk = false; //(dwFlags & PSEUDOCONSOLE_RESIZE_QUIRK) == PSEUDOCONSOLE_RESIZE_QUIRK;
const BOOL bWin32InputMode = (dwFlags & PSEUDOCONSOLE_WIN32_INPUT_MODE) == PSEUDOCONSOLE_WIN32_INPUT_MODE;
swprintf_s(cmd,
MAX_PATH,
pwszFormat,
_ConsoleHostPath(),
bInheritCursor ? L"--inheritcursor " : L"",
bWin32InputMode ? L"--win32input " : L"",
bResizeQuirk ? L"--resizeQuirk " : L"",
size.X,
size.Y,
signalPipeConhostSide.get(),
serverHandle.get());

@QQxiaoming
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After some testing, removing the "--resizeQuirk" setting has better display effects on PowerShell, SSH, and WSL than before. Although there are still some strange behaviors, they are completely consistent with the behavior of Microsoft Terminal, so this change is acceptable. We continue to look forward to further optimization of conpty by Microsoft in the future.

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